CAS 113170-55-1 ·Formula C12H12Mg3O18P2 ·MW 579.08 g/mol
A hydrolysis-stable vitamin C phosphate ester formulated for water-based skin care. It is used as an antioxidant active and stable vitamin C source in cosmetic and personal-care formulations.
▸Cosmetics: Stable vitamin C antioxidant active in skin care.
▸Formulation stability: More oxidation-resistant than free ascorbic acid.
▸Personal care: Water-soluble vitamin C source for serums and lotions.
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Magnesium ascorbyl phosphatePhospitan CAscorbyl PMORISTAR MAPascorbyl phosphate magnesiumK Oxiderm OP Post Procedure skin care bruiseL-Ascorbic acid, 2-(dihydrogen phosphate), magnesium salt (2:3)magnesium l-ascorbyl-2-phosphateMERCARE MAPmagnesium L-ascorbate 2-phosphateTrimagnesium L-Ascorbic acid 2-phosphate
Full Description
Magnesium ascorbyl phosphate (MAP, CAS 113170-55-1) is a water-soluble, oxidation-stable derivative of L-ascorbic acid (vitamin C). It is used as an antioxidant active and stable vitamin C source in cosmetic and personal-care formulations.
Frequently Asked Questions
Is magnesium ascorbyl phosphate the same as vitamin C?
Magnesium ascorbyl phosphate (MAP, CAS 113170-55-1) is a water-soluble, oxidation-stable derivative of L-ascorbic acid (vitamin C), not free vitamin C itself. It is used as a stable vitamin C source in cosmetic and personal-care formulations.
What is another name for magnesium ascorbyl phosphate?
It is commonly abbreviated MAP and listed by the INCI name magnesium ascorbyl phosphate (CAS 113170-55-1, formula C12H12Mg3O18P2).
Is ascorbyl phosphate the same as ascorbic acid?
No. Ascorbyl phosphate derivatives are phosphate esters of ascorbic acid that are more oxidation-resistant and water-soluble than free L-ascorbic acid. MAP is the magnesium salt of such a derivative.
Why is MAP used instead of plain ascorbic acid in formulations?
MAP is more oxidation-resistant and water-soluble than free ascorbic acid, which improves formulation stability in serums and lotions. It is supplied as a stable vitamin C source for personal-care manufacturing.
What is the HS code and how is bulk MAP supplied?
MAP classifies under HS 2936.27 (vitamin C and its derivatives). It is supplied in bulk for cosmetic and personal-care formulation; request a bulk quote with CoA and SDS for your target quantity.
Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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